Pantheris Atherectomy Treatment of In-Stent Restenosis In Lower Extremity Arteries

This is a prospective, global, single-arm, multi-center study to evaluate the safety and effectiveness of the Pantheris OCT-Imaging System to perform atherectomy of in-stent restenotic (ISR) lesions in lower extremity arteries. The trial will enroll up to 140 subjects diagnosed with peripheral arterial disease of the lower extremities that have previously been treated with stenting at up to 20 sites. The primary disease must be located in reference vessel diameter of \>3.0mm and ≤7.0mm. Trial success is focused on safety, including rates of major adverse events through 30 days as adjudicated by a Clinical Events Committee, and effectiveness, which will be evaluated using technical success defined as the percent of target lesions that have residual diameter stenosis \<50% post-treatment with the Pantheris device alone as assessed by Angiographic Core Lab.